Hi Rainy..... Rest assured, your babys' heartrate will vary throughout your whole pregnancy.... Anywhere betweenn 120 and 180 is considered normal.
This is coming from a mom of three wonderful children: Anthony is 11, Anna is almost 5 and Isabella is 5 months.....
Congratulations... How exciting for you. Isabella is my last child and its sad sometimes i wont be able to feel a baby moving inside me or the excitement of it all!!